[Asterisk-bsd] E1 Problems with TE110p

[Phillip Neumann]

Dear AST-BSD list...

My current asterisk1.4.4/zaptel1.4.1 PBX, has a problem.

Sometimes, all comunications from the zap channel, are getting dropped. 
in the logs, i see things like this:
Jun  5 12:34:36 pbx kernel: wcte11xp: Setting yellow alarm
Jun  5 12:35:11 pbx kernel: wcte11xp: Clearing yellow alarm

and in asterisk i see:
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Detected alarm on channel
1: Red Alarm
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Unable to disable echo
cancellation on channel 1
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Detected alarm on channel
2: Red Alarm
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Unable to disable echo
cancellation on channel 2
...
[Jun  5 12:34:36] NOTICE[52644] chan_zap.c: PRI got event: Alarm (4) on
Primary D-channel of span 1
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Detected alarm on channel
21: Red Alarm
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: No D-channels available!
Using Primary channel 16 as D-channel anyway!
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Unable to disable echo
cancellation on channel 21
[Jun  5 12:34:36] WARNING[52644] chan_zap.c: Detected alarm on channel
22: Red Alarm


and then 

[Jun  5 12:34:47] WARNING[52644] chan_zap.c: No D-channels available!
Using Primary channel 16 as D-channel anyway!
[Jun  5 12:35:11] NOTICE[52644] chan_zap.c: Alarm cleared on channel 1
[Jun  5 12:35:11] NOTICE[52644] chan_zap.c: Alarm cleared on channel 2
[Jun  5 12:35:11] NOTICE[52644] chan_zap.c: Alarm cleared on channel 3


after the alarm are cleared, PBX comes out, and ppl can make calles
again.




The telco says its a problem comming from the PBX. They are monitoring
the comunications, and they see a "LOFT" alawm signal comming from the
PBX.

Im pretty lost here, as im not really an expert. 


If anyone can give me an advice about this, it woule be greate!

In the meaning time, im buying a Sangoma A101, and crossing the fingers
its a bug in the digium hardware.


This problem, present like 2-3/day.



thanks in advance.

Phillip